The Aston Martin AE54 is a 3,995 cc, twin — turbocharged V8 petrol engine produced between 2022 and 2025. It features dual overhead camshafts (DOHC), 32 — valve architecture, and Bosch MED17.8 engine management, delivering 535 kW (728 PS) and 800 Nm of torque. This engine was developed in — house by Aston Martin to power the DB12 and DBS 770 Ultimate, combining forced induction with refined grand touring dynamics.
Fitted to the DB12 and DBS 770 Ultimate, the AE54 was engineere…
Production years 2022–2025 meet Euro 6d standards .
The Aston Martin AE54 is a 3,995 cc twin-turbocharged V8 petrol engine engineered for high-performance grand touring (2022–2025). It combines DOHC 32-valve architecture with Bosch MED17.8 engine management to deliver strong low-end torque and high-speed refinement. Designed to meet Euro 6d, it balances track-capable performance with road-going usability.
| Parameter | Value | Source |
|---|---|---|
Displacement | 3,995 cc | |
Fuel type | Petrol | |
Configuration | V8, DOHC, 32-valve | |
Aspiration | Twin-turbocharged | |
Bore × stroke | 94.0 mm × 71.8 mm | |
Power output | 535 kW (728 PS) @ 6,000 rpm | |
Torque | 800 Nm @ 1,800–5,000 rpm | |
Fuel system | Bosch MED17.8 direct injection (up to 200 bar) | |
Emissions standard | Euro 6d | |
Compression ratio | 10.5:1 | |
Cooling system | Water-cooled | |
Turbocharger | Twin-scroll turbochargers (IHI units) | |
Timing system | Dual chain (front-mounted) | |
Oil type | Refer to vehicle handbook / manufacturer specification | |
Dry weight | 227 kg |
The Aston Martin AE54 was used across Aston Martin's DB and DBS platforms with longitudinal mounting and no licensed external applications. This engine received platform-specific adaptations-reinforced engine mounts in the DBS 770 Ultimate and tuned exhaust manifolds in the DB12-and from 2023 the facelifted DB12 adopted revised intake manifolds and camshaft profiles, creating minor interchange limits. All adaptations are documented in OEM technical bulletins and ETK parts catalogues.
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Field reports and technical service bulletins highlight component wear patterns under high-load operation. Adherence to manufacturer service intervals and approved fluid specifications is critical for long-term reliability.
Analysis derived from manufacturer technical service bulletins and industry workshop records. Repair procedures should follow manufacturer guidelines.
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The AE54 is a robust twin-turbo V8 with strong build quality. No widespread reliability issues have been reported, though pre-2023 models may develop intake carbon buildup if used primarily for short trips. Regular maintenance, use of RON 98+ fuel, and adherence to 12,000 km oil changes with OEM-specified oil ensure long-term durability.
The most documented issues are intake valve carbon buildup, high-pressure fuel pump wear, and minor oil leaks from valve cover gaskets. Turbocharger actuator wear has been noted in early builds. These are addressed in Aston Martin service information bulletins and field engineering updates.
The AE54 powers the DB12 (2023–2025) and DBS 770 Ultimate (2022–2025). It is an in-house Aston Martin design with no non-Aston Martin applications. All models are Euro 6d compliant.
Aftermarket ECU tuning is common on the AE54 platform, but increasing boost or altering engine parameters accelerates component wear, impacts emissions compliance, and may void vehicle warranties. Any modifications should be evaluated carefully by a qualified specialist.
In the DB12, combined consumption is ~13.2 L/100km (21.4 mpg UK), with city driving reaching ~17.0 L/100km (16.8 mpg). Highway efficiency improves to ~10.5 L/100km (26.9 mpg). Real-world figures vary significantly with driving style. Expect 17–23 mpg (UK) under mixed conditions.
Yes. The AE54 is an interference engine. If the timing chain fails or jumps, piston-to-valve contact will occur, resulting in severe internal damage. Regular inspection of the chain and tensioner per service schedule is essential to prevent catastrophic failure.
Aston Martin specifies SAE 0W-20 synthetic oil meeting Aston Martin Longlife-20 standards. Oil must be changed every 12,000 km or 12 months. Using correct oil ensures proper high-RPM lubrication and reduces intake carbon formation in this direct-injected engine.
Comprehensive technical documentation and regulatory references
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GOV.UK: Vehicle Approval & V5C
UK vehicle approval processes, import rules, and MoT guidance.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
Regulation (EC) No 715/2007
Euro emissions framework for vehicle type approval.
Commission Regulation (EU) 2017/1151
WLTP and RDE testing procedures for emissions certification.
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Type-approval guidance and documentation.
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